Facebook's social media accounts were temporarily hackedby a group of hackers on Friday afternoon. Raising concerns about the securityof the social networks, Facebook's accounts on Twitter and Instagram were takendown by hacking group OurMine. Hackers also compromised the Twitter account forFacebook's messaging service.

OurMine posted on the Twitter account for Facebook and Messenger, writing, "Well, even Facebook is hackable but at least their security better than Twitter." On the other hand, hijacking Facebook and Massager's accounts on Instagram, they posted a photo of OurMine's logo.

Meanwhile, Twitter confirmed that the hacking occurredvia a third-party and that accounts were locked once it was alerted to theissue.

Earlier, OurMine reportedly infiltrated the socialmedia account of Twitter's founder Jack Dorsey, Google's chief executive SundarPichai, and the corporate accounts of Netflix and ESPN.